EP0159514B2 - Coating layer based on a fleece or a fabric - Google Patents

Coating layer based on a fleece or a fabric Download PDF

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Publication number
EP0159514B2
EP0159514B2 EP19850102823 EP85102823A EP0159514B2 EP 0159514 B2 EP0159514 B2 EP 0159514B2 EP 19850102823 EP19850102823 EP 19850102823 EP 85102823 A EP85102823 A EP 85102823A EP 0159514 B2 EP0159514 B2 EP 0159514B2
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EP
European Patent Office
Prior art keywords
material according
cover
cover material
coating
weight
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP19850102823
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German (de)
French (fr)
Other versions
EP0159514B1 (en
EP0159514A1 (en
Inventor
Heinrich Brands
Siegfried Fiebig
Hans Schillings
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HANS SCHILLINGS
Original Assignee
Vliepa GmbH Vlies Papier und Kunststoffveredlung Loesungen fuer Die Bau Papier und Verpackungsindustrie
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Application filed by Vliepa GmbH Vlies Papier und Kunststoffveredlung Loesungen fuer Die Bau Papier und Verpackungsindustrie filed Critical Vliepa GmbH Vlies Papier und Kunststoffveredlung Loesungen fuer Die Bau Papier und Verpackungsindustrie
Priority to AT85102823T priority Critical patent/ATE32612T1/en
Publication of EP0159514A1 publication Critical patent/EP0159514A1/en
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Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N7/00—Flexible sheet materials not otherwise provided for, e.g. textile threads, filaments, yarns or tow, glued on macromolecular material
    • D06N7/0005—Floor covering on textile basis comprising a fibrous substrate being coated with at least one layer of a polymer on the top surface
    • D06N7/0039—Floor covering on textile basis comprising a fibrous substrate being coated with at least one layer of a polymer on the top surface characterised by the physical or chemical aspects of the layers
    • D06N7/0052—Compounding ingredients, e.g. rigid elements
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N5/00—Roofing materials comprising a fibrous web coated with bitumen or another polymer, e.g. pitch
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
    • E04C2/02—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
    • E04C2/04—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of concrete or other stone-like material; of asbestos cement; of cement and other mineral fibres
    • E04C2/043—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of concrete or other stone-like material; of asbestos cement; of cement and other mineral fibres of plaster
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
    • E04C2/02—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
    • E04C2/10—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of wood, fibres, chips, vegetable stems, or the like; of plastics; of foamed products
    • E04C2/24—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of wood, fibres, chips, vegetable stems, or the like; of plastics; of foamed products laminated and composed of materials covered by two or more of groups E04C2/12, E04C2/16, E04C2/20
    • E04C2/246—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of wood, fibres, chips, vegetable stems, or the like; of plastics; of foamed products laminated and composed of materials covered by two or more of groups E04C2/12, E04C2/16, E04C2/20 combinations of materials fully covered by E04C2/16 and E04C2/20
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N2209/00—Properties of the materials
    • D06N2209/06—Properties of the materials having thermal properties
    • D06N2209/067—Flame resistant, fire resistant
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/25—Web or sheet containing structurally defined element or component and including a second component containing structurally defined particles
    • Y10T428/256—Heavy metal or aluminum or compound thereof
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/20—Coated or impregnated woven, knit, or nonwoven fabric which is not [a] associated with another preformed layer or fiber layer or, [b] with respect to woven and knit, characterized, respectively, by a particular or differential weave or knit, wherein the coating or impregnation is neither a foamed material nor a free metal or alloy layer
    • Y10T442/2631—Coating or impregnation provides heat or fire protection

Definitions

  • the invention relates to a nonwoven or fabric-based cover layer material for plates made of liquid or liquid-containing starting components provided with cover layers on both sides, with a coating of powdery inorganic material and binders applied on one side.
  • Panels provided with cover layers on both sides are widely used as components such as roof elements and for heat and impact sound insulation as well as packaging material.
  • the cover layers on one side, but usually on both sides of the plate usually fulfill a double function: on the one hand, they give the particularly stressed top and bottom surfaces of the plates special properties such as stability and strength, gas and water vapor density, etc., and on the other hand they have a protective function in the manufacture of the panels, in particular to prevent them from sticking to the form in which the foaming takes place.
  • nonwoven or woven webs as cover sheet materials, such as nonwovens or woven fabrics made of cellulose fibers, polyester fibers, and in particular because of their non-flammability, glass fiber nonwovens or woven fabrics.
  • cover sheet materials such as nonwovens or woven fabrics made of cellulose fibers, polyester fibers, and in particular because of their non-flammability, glass fiber nonwovens or woven fabrics.
  • core material such as the polyurethane foam
  • the bond between core and cover sheet material made of paper or foil was always problematic. Nevertheless, nonwoven and woven materials have not been able to establish themselves as cover layer material because the liquid components pass through the spaces present in the nonwoven or woven fabric and in turn lead to sticking to the plate tapes.
  • Such liquid or liquid-containing starting components are present in particular in the production of rigid PU foams, but also in the case of urea-formaldehyde foam materials in which the starting materials react chemically or set and in the production of gypsum boards which set hydraulically.
  • an insulation body which has an outer skin made of a glass fiber fleece which has a coating of at least one metal oxide such as aluminum hydroxide and / or antimony oxide and plastic copolymers.
  • metal oxide such as aluminum hydroxide and / or antimony oxide and plastic copolymers.
  • the proportion of metal oxide in the dried mass in this cover layer material is between 50 and 70% by weight, the coating composition being applied to the glass fiber fleece in a pasty, foamed state and then dried by means of radiant heat.
  • Such a coating composition may meet the earth's requirements for flame resistance, but not the solution to the problem posed by the invention.
  • Percentages of 50 to 70% by weight of inorganic material are solids concentrations as are customary in coating and coating compositions for paper and cardboard.
  • Such conventional coating compositions with a high proportion of binder and liquid are not suitable for the purpose pursued by the invention because liquid and binder penetrate through the fleece or fabric and lead to sticking to the rollers and belts of the coating system.
  • the considerable amounts of liquid to be removed also lead to bubbles and to the drying process Shrinkage and the coating does not dry without cracks.
  • the relatively high proportion of binder also frequently leads to the plates sticking to one another when the plates provided with these cover layers are stacked, in particular due to the heat released during the post-hardening of the plates.
  • a cover layer material with the generic features of claim 1 in that there is a coating on a nonwoven or fabric with a basis weight of 35 to 350 g / m 2 in which the powdery inorganic material 80-94 and the binder at least 6% by weight of atro of the total coating.
  • a preferred method for producing the cover layer material is to use a coating composition with a very high solids content, preferably from 70 to 80% by weight. Surprisingly, this coating can still be applied with a squeegee. It is expediently dried with hot circulating air and results in a perfectly closed coating without bubbles, shrinkage or cracks.
  • the advantage of the cover sheet material according to the invention lies in the fact that the unusually high proportion of inorganic material makes the fleece or fabric impermeable to the liquid starting components, thereby maintaining the open structure of the fleece or fabric on the back and thus ensuring good anchoring of the cover sheet material the core material of the plate is guaranteed during the subsequent formation or foaming.
  • the high proportion of inorganic material also means that a PU rigid foam sheet provided with this top layer material is resistant to hot bitumen, for example of 180 degrees, the top layer is not destroyed and no blistering occurs between the top layer and PU rigid foam.
  • the high proportion of inorganic material further reduces the flammability compared to previously known materials.
  • inorganic-based binders such as water glass
  • organic-based binders in particular plastic-based
  • plastic-based are suitable as binders. Since water glass as a binder makes the top layer quite brittle, blends with binders based on plastic are also recommended.
  • Inorganic binders have the advantage that they further reduce the flammability.
  • the plastic-based binders are preferably used as plastic dispersions with a solids content of 35 to 70% by weight.
  • Particularly suitable are polyvinyl chloride and polyvinylidene chloride, which have the advantage of being flame-retardant and copolymers and terpolymers of vinyl acetate with maleic acid and acrylic acid. Because of their good binder properties, styrene-butadiene copolymers and polymers or copolymers of acrylic acid or methacrylic acid are particularly preferred over the inorganic coating constituents.
  • the amount of plastic dispersion used depends somewhat on the solids content, and in order to keep the energy required for drying the coating low, the solids content is as high as possible.
  • the most diverse powdery substances are suitable as inorganic material, in particular those based on minerals, such as silicates, clays, etc. Because of its easy accessibility and therefore reasonable pricing, calcium carbonate has proven to be particularly preferred.
  • aluminum hydroxide or aluminum oxide hydrate is particularly recommended as the inorganic material, with which the flammability level A2 can be achieved.
  • the inorganic material consists of a mixture of 10 to 50% by weight calcium carbonate and 90 to 50% by weight aluminum hydroxide or aluminum oxide hydrate for the coating.
  • the cover layer material and the PU rigid foam sheet covered with it become all the more so more flame-resistant, the higher the proportion of aluminum hydroxide or aluminum oxide hydrate.
  • the coating expediently also contains certain proportions of organic or mineral dyes, in order to thereby identify different grades of the plate, for example with regard to the fire behavior.
  • coloring the cover material with carbon black has proven to be preferred, because even a small amount covers the entire surface.
  • the admixture of up to 5% by weight of titanium oxide powder, based on the total amount of inorganic Material proven to be preferred.
  • the fleece or fabric used for the cover layer material has a basis weight between 35 and 350 g / m 2 , preferably from 40 g / m 2 to 150 g / m 2 and the application weights of the coating are expediently between 150 and 450 g / m 2 , whereby these weights to a large extent on the intended use, the thickness of the core material and the like. Factors are dependent. Glass fiber fleece or woven fabric has proven particularly useful as a nonwoven and woven material, since it is not flammable. An organic-based nonwoven and woven material is expediently used. Because of its good strength, a polyester fiber fleece is preferred.
  • both fleece and a mesh fabric are expediently used together, because this can significantly reduce the susceptibility of the gypsum boards to breakage.
  • fleece and mesh together the longitudinal and transverse strength can generally be increased considerably.
  • cover layer material is particularly preferred for the production of sheets of liquid or liquid-containing starting components provided with cover layers on both sides, in particular for the production of gypsum boards and polyurethane (PU) rigid foam boards.
  • the use of the cover layer material is very preferred for the production of plates provided with cover layers on both sides in a continuous plate production system with upper and lower belt. It is of course also suitable as a lamination material for subsequent lamination, for example on polystyrene foam sheets cut from a block of foamed polystyrene, the uncoated nonwoven or fabric side also being available here for the good bond between the cover layer material and the core material via the lamination material.
  • a coating composition of CaC0 3 is applied to a glass fiber fleece with a weight per unit area of approx. 60 g / m 2 in a knife coater.
  • the proportions of CaC0 3 powder and plastic dispersion in the coating composition are chosen so that after drying with hot circulating air in a drying tunnel, the coating is 92% by weight of inorganic material and 6.5% by weight of binder and the rest consists of auxiliary materials.
  • the coating amount is 250 g / m 2 atro.
  • a cellulose-based fleece which is flame-retardant and has a weight of 50 g / m 2 , is applied in a knife coater with a coating composition of aluminum hydroxide, calcium carbonate and a plastic dispersion of a terpolymer of vinyl acetate, maleic acid and methacrylic acid ester with a solids content of 50 % By weight and 3 g of the customary auxiliaries, the total solids content of the coating composition being approximately 73% by weight.
  • the proportions of aluminum hydroxide, calcium carbonate and plastic dispersion in the coating composition are selected so that after drying with hot circulating air in a drying tunnel, the coating is 60% by weight aluminum hydroxide, 22% by weight calcium carbonate and 15% by weight. % of binder, the rest of auxiliary materials.
  • the coating amount is approx. 250 g / m 2 atro.
  • wetting and preserving agents and 23 g of water were applied in a knife coater and dried with hot circulation in a drying tunnel.
  • This top layer material is characterized by the use of titanium dioxide due to its white Color and is used in the production of white panels that are used as wall cladding. The amount of coating on the dried top layer is approx. 270 g / m 2 atro.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Textile Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Laminated Bodies (AREA)
  • Paper (AREA)
  • Toilet Supplies (AREA)
  • Decoration Of Textiles (AREA)
  • Details Of Garments (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)
  • Developing Agents For Electrophotography (AREA)
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Abstract

The invention relates to a cover layer material on a basis of matting or fabric for the production of boards made of fluid or fluid-containing starting components and provided with cover layers, especially for the production of gypsum boards and polyurethane (PU) hard foam boards and their use in a continuous board producing apparatus.

Description

Die Erfindung betrifft ein Decklagenmaterial auf Vlies- oder Gewebebasis für beidseitig mit Decklagen versehene Platten aus flüssigen bzw. Flüssigkeiten enthaltenden Ausgangskomponenten mit einer einseitig aufgebrachten Beschichtung aus pulverförmigem anorganischem Material und Bindemitteln.The invention relates to a nonwoven or fabric-based cover layer material for plates made of liquid or liquid-containing starting components provided with cover layers on both sides, with a coating of powdery inorganic material and binders applied on one side.

Beidseitig mit Decklagen versehene Platten, wie Gipsplatten und Schaumstoffplatten aus aufgeschäumten Polystyrol, Polyurethan oder Harnstoff-Formaldehydharzen finden in breitem Ausmaß als Bauelemente wie Dachelemente und zurWärme- und Trittschallisolierung sowie auch als Verpackungsmaterial Verwendung. Die einseitig, meist aber auf beiden Seiten der Platte befindlichen Decklagen erfüllen dabei meist eine Doppelfunktion: zum einen verleihen sie den besonders beanspruchten Ober- und Unterflächen der Platten besondere Eigenschaften wie Stabilität und Festigkeit, Gas- und Wasserdampfdichte u.ä., zum anderen erfüllen sie eine Schutzfunktion bei der Herstellung der Platten, insbesondere um ein Verkleben mit der Form zu verhindern, in der die Aufschäumung erfolgt.Panels provided with cover layers on both sides, such as plasterboard and foam panels made of foamed polystyrene, polyurethane or urea-formaldehyde resins, are widely used as components such as roof elements and for heat and impact sound insulation as well as packaging material. The cover layers on one side, but usually on both sides of the plate, usually fulfill a double function: on the one hand, they give the particularly stressed top and bottom surfaces of the plates special properties such as stability and strength, gas and water vapor density, etc., and on the other hand they have a protective function in the manufacture of the panels, in particular to prevent them from sticking to the form in which the foaming takes place.

Das gilt ganz besonders bei dem heute in sehr großem Ausmaß durchgeführten kontinuierlichen Verfahren in sogenannten Plattenanlagen, in denen die Aufschäumung zwischen umlaufenden Plattenbändern erfolgt, wobei die Formierung des Kernmaterials bzw. dessen Aufschäumung aus flüssigen Komponenten wie beispielsweise bei Polyurethanschaum gegen diese umlaufenden Plattenbänder erfolgt. Um eine Verklebung mit diesen umlaufenden Plattenbändern zu verhindern, läßt man Papierlagen anliegend am oberen und unteren umlaufenden Plattenband mitlaufen. Diese Lagen verbinden sich mit dem Kernmaterial, also beispielsweise dem Polyurethanschaum und verbleiben üblicherweise als beidseitige Decklagen auch darauf, weil die so hergestellte Platte dadurch an Stabilität und Festigkeit gewinnt und auch die Oberflächengüte zunimmt. Man hat auch bereits vorgeschlagen, Vlies- oder Gewebebahnen als Decklagenmaterialien zu benutzen, wie Vliese oder Gewebe aus Zellulosefasern, Polyesterfasern, und insbesondere ihrer Unbrennbarkeit wegen, Glasfaservliese oder -gewebe. Ein weiterer Vorteil solcher Decklagen aus Vlies oder Gewebe besteht darin, daß in die darin vorhandenen Zwischenräume das Kernmaterial wie der Polyurethanschaum eindringen kann und damit eine gute Verankerung zwischen Kernmaterial und Decklagenmaterial gewährleistet ist. Der Verbund zwischen Kern- und Decklagenmaterial aus Papier oder Folie war immer problematisch. Trotzdem haben sich Vlies- und Gewebematerialien als Decklagenmaterial nicht durchsetzen können, weil die flüssigen Komponenten durch die in Vlies oder Gewebe vorhandenen Zwischenräume hindurchtreten und wiederum zum Verkleben mit den Plattenbändern führen. Solche flüssigen oder Flüssigkeiten enthaltenden Ausgangskomponenten liegen insbesondere bei der Herstellung von PU-Hartschäumen, aber auch bei Harnstoff-Formaldehyd-Schaummaterialien vor, bei denen die Ausgangsmaterialien chemisch reagieren oder abbinden und bei der Herstellung von Gipsplatten, die hydraulisch abbinden.This applies particularly to the continuous process carried out today to a very large extent in so-called plate plants, in which the foaming takes place between circulating plate belts, the core material being formed or foamed from liquid components, for example in the case of polyurethane foam, against these circulating plate belts. In order to prevent gluing with these circumferential plate tapes, paper layers are allowed to run along the upper and lower circumferential plate tapes. These layers combine with the core material, for example the polyurethane foam, and usually remain on both sides as top layers because the panel thus produced gains stability and strength and the surface quality also increases. It has also been proposed to use nonwoven or woven webs as cover sheet materials, such as nonwovens or woven fabrics made of cellulose fibers, polyester fibers, and in particular because of their non-flammability, glass fiber nonwovens or woven fabrics. Another advantage of such cover layers made of fleece or fabric is that the core material, such as the polyurethane foam, can penetrate into the interstices therein, thus ensuring good anchoring between the core material and cover layer material. The bond between core and cover sheet material made of paper or foil was always problematic. Nevertheless, nonwoven and woven materials have not been able to establish themselves as cover layer material because the liquid components pass through the spaces present in the nonwoven or woven fabric and in turn lead to sticking to the plate tapes. Such liquid or liquid-containing starting components are present in particular in the production of rigid PU foams, but also in the case of urea-formaldehyde foam materials in which the starting materials react chemically or set and in the production of gypsum boards which set hydraulically.

Man hat diesem Nachteil bereits versucht dadurch abzuhelfen, daß man die Vlies- oder Gewebematerialien mit Polyäthylen oder Bitumen beschichtet hat, wobei man im letzteren Fall, um die Decklage überhaupt handhabbar zu machen, diese zusätzlich mit Sand bestreuen mußte. Nachteilig an diesen vorbekannten Materialien ist aber, daß sowohl Polyäthylen als auch Bitumen ziemlich stark in das Vlies oder Gewebe eindringen, dadurch dessen offene Struktur verloren geht und der Verbund zwischen Vlies oder Gewebe und dem den Kern der Platte bildenden Material damit unzureichend wird. Bei PU-Hartschaumplatten, an deren Beispiel die der Erfindung zugrundeliegende Problematik nachfolgend beschrieben wird, liegt ein weiterer Nachteil darin, daß beide Materialien leicht brennbar sind und damit die daraus hergestellte, mit Decklagen versehene PU-Hartschaumplatte äußerst schlechte Eigenschaften hinsichtlich ihres Brandverhaltens hat.Attempts have already been made to remedy this disadvantage by coating the nonwoven or woven materials with polyethylene or bitumen, in the latter case, in order to make the cover layer manageable at all, it had to be additionally sprinkled with sand. A disadvantage of these previously known materials, however, is that both polyethylene and bitumen penetrate the fleece or fabric fairly strongly, as a result of which the open structure is lost and the bond between the fleece or fabric and the material forming the core of the plate thus becomes insufficient. In the case of PU rigid foam sheets, the example of which the problem underlying the invention is described below, there is a further disadvantage in that both materials are easily combustible and the PU rigid foam sheet produced therefrom and provided with cover layers has extremely poor properties with regard to their fire behavior.

In der DE-A 31 20 342 wird mit dem Ziel der Schwerentflammbarkeit bereits ein Isolationskörper beschrieben, der eine Außenhaut aus einem Glasfaservlies aufweist, die eine Beschichtung aus mindestens einem Metalloxyid wie Aluminiumhydroxid und/oderAntimonoxid und Kunststoffmischpolymerisaten aufweist. Die bei der Erfindung gestellten, vorstehend aufgezeigten Erfordernisse können jedoch mit der technischen Lehre dieser Vorveröffentlichung aus nachfolgenden Gründen ebenfalls nicht erfüllt werden. DerAnteil an Metalloxid in der getrockneten Masse liegt bei diesem Decklagenmaterial zwischen 50 und 70 Gew. % wobei die Beschichtungsmasse in pastösem, aufgeschäumten Zustand auf das Glasfaservlies aufgetragen und anschließend mittels Strahlungswärme getrocknet wird. Eine solche Beschichtungsmasse mag zwar das dort gestellte Erdordernis der Schwerentflammbarkeit erfüllen, nicht aber die Lösung der bei der Erfindung gestellten Aufgabe. Bei Prozentgehalten von 50 bis 70 Gew. % anorganischem Material handelt es sich um Feststoffkonzentrationen, wie sie in Streich- und Beschichtungsmassen bei Papier und Karton üblich sind. Für den bei der Erfindung verfolgten Zweck sind solche üblichen Beschichtungsmassen mit hohem Anteil an Bindemittel und Flüssigkeit deshalb nicht geeignet, weil Flüssigkeit und Bindemittel durch das Vlies oder Gewebe hindurchschlagen und zum Verkleben mit Walzen und Bändern der Beschichtungsanlage führen. Die erheblichen Mengen an zu entfernender Flüssigkeit führen beim Trockenvorgang außerdem zu Blasen und zum Schrumpf und die Beschichtung trocknet nicht rißfrei. Der verhältnismäßig hohe Bindemittelanteil führt außerdem beim Stapeln von mit diesen Decklagen versehenen Plattenhäufig zu einem Verkleben der Platten untereinander, insbesondere durch frei werdende Wärme beim Nachhärten der Platten.In DE-A 31 20 342, with the aim of flame retardancy, an insulation body is already described which has an outer skin made of a glass fiber fleece which has a coating of at least one metal oxide such as aluminum hydroxide and / or antimony oxide and plastic copolymers. However, the requirements set out above in the invention, indicated above, cannot be met with the technical teaching of this prior publication for the following reasons either. The proportion of metal oxide in the dried mass in this cover layer material is between 50 and 70% by weight, the coating composition being applied to the glass fiber fleece in a pasty, foamed state and then dried by means of radiant heat. Such a coating composition may meet the earth's requirements for flame resistance, but not the solution to the problem posed by the invention. Percentages of 50 to 70% by weight of inorganic material are solids concentrations as are customary in coating and coating compositions for paper and cardboard. Such conventional coating compositions with a high proportion of binder and liquid are not suitable for the purpose pursued by the invention because liquid and binder penetrate through the fleece or fabric and lead to sticking to the rollers and belts of the coating system. The considerable amounts of liquid to be removed also lead to bubbles and to the drying process Shrinkage and the coating does not dry without cracks. The relatively high proportion of binder also frequently leads to the plates sticking to one another when the plates provided with these cover layers are stacked, in particular due to the heat released during the post-hardening of the plates.

Es besteht deshalb ein dringendes technisches Bedürfnis nach einem Decklagenmaterial, das die oben aufgezeigten Nachteile nichtaufweistund nachfolgendes Anforderungsprofil erfüllt:

  • 1. Das Decklagenmaterial soll die Doppelfunktion erfüllen
    • a) von der Beschichtungsseite her absolut dicht zu sein, um bei der Plattenherstellung aus Flüssigkeit enthaltenden Ausgangskomponenten ein Hinduchtreten von Flüssigkeit und ein Verkleben mit der Form bzw. den Plattenbändern einer kontinuierlichen Anlage zu vermeiden,
    • b) an der unbeschichteten Seite des Vlieses oder Gewebes möglichst weitgehend dessen offene Struktur zu erhalten, um eine gute Verankerung des Kernmaterials der Platte mit den Decklagen zu bewirken.
  • 2. Das Decklagenmaterial soll im Brandverhalten möglichst der Baustoffgruppe B2 oder B1, nach Möglichkeit aber sogar der Baustoffgruppe A2 entspechen.
  • 3. Es soll gegenüber heißem Bitumen beständig sein, so daß die Decklage beim häufig üblichen Bituminieren, z. B. eines Flachdaches, nicht zerstört wird und keine Blasenbildung, d.h. teilweise Trennung zwischen Decklage und PU-Hartschaum, auftritt.
  • 4. Mit dem Decklagenmaterial versehene Platten sollen beim Stapeln unter Druck- und Wärmeeinwirkung nicht miteinander verkleben.
There is therefore an urgent technical need for a cover layer material that does not have the disadvantages shown above and meets the following requirement profile:
  • 1. The top layer material should fulfill the double function
    • a) to be absolutely tight from the coating side, in order to prevent liquid from passing through and sticking to the shape or the plate tapes of a continuous system in the production of plates from liquid-containing starting components,
    • b) to maintain the open structure of the non-coated side of the nonwoven or fabric as far as possible in order to ensure good anchoring of the core material of the plate with the cover layers.
  • 2. In fire behavior, the top layer material should correspond as far as possible to building material group B2 or B1, but if possible even to building material group A2.
  • 3. It should be resistant to hot bitumen, so that the top layer in the usual bituminizing, z. B. a flat roof, is not destroyed and no blistering, ie partial separation between the top layer and rigid PU foam occurs.
  • 4. Panels provided with the top layer material should not stick together when exposed to pressure and heat.

Gelöst wird diese Aufgabe bei einem Decklagenmaterial mit den gattungsmäßigen Merkmalen des Patentanspruchs 1 dadurch daß sich auf einem Vlies oder Gewebe mit einem Flächengewicht von 35 bis 350 g/m2 eine Beschichtung befindet, in der das pulverförmige anorganische Material 80 - 94 und das Bindemittel mindestens 6 Gew.-% atro der Gesamtbeschichtung ausmacht.This object is achieved with a cover layer material with the generic features of claim 1 in that there is a coating on a nonwoven or fabric with a basis weight of 35 to 350 g / m 2 in which the powdery inorganic material 80-94 and the binder at least 6% by weight of atro of the total coating.

Ein bevorzugtes Verfahren zur Herstellung des Decklagenmaterials liegt in der Verwendung einer Beschichtungsmasse mit einem sehr hohen Feststoffanteil, vorzugsweise von 70 bis 80 Gew.%. Überraschenderweise ist diese Beschichtung noch mit einer Rackelvorrichtung aufzutragen. Sie wird zweckmäßig mit heißer Umluft getrocknet und ergibt eine einwandfreie geschlossene Beschichtung ohne Blasen, Schrumpf oder Risse.A preferred method for producing the cover layer material is to use a coating composition with a very high solids content, preferably from 70 to 80% by weight. Surprisingly, this coating can still be applied with a squeegee. It is expediently dried with hot circulating air and results in a perfectly closed coating without bubbles, shrinkage or cracks.

Der Vorteil des Decklagenmaterials nach der Erfindung liegt darin, daß durch den ungewöhnlich hohen Anteil an anorganischem Material das Vlies oder Gewebe undurchlässig fürdie flüssigen Ausgangsbestandteile wird, dadurch rückseitig die offene Struktur des Vlieses bzw. -gewebes erhalten bleibt und damit eine gute Verankerung des Decklagenmaterials mit dem Kernmaterial der Platte bei der späteren Formierung bzw. Aufschäumung gewährleistet ist.The advantage of the cover sheet material according to the invention lies in the fact that the unusually high proportion of inorganic material makes the fleece or fabric impermeable to the liquid starting components, thereby maintaining the open structure of the fleece or fabric on the back and thus ensuring good anchoring of the cover sheet material the core material of the plate is guaranteed during the subsequent formation or foaming.

Der hohe Anteil an anorganischem Material bewirkt außerdem, daß eine mit diesem Decklagenmaterial versehene PU-Hartschaumbahn gegenüber heißem Bitumen, beispielsweise von 180 Grad, beständig ist, die Decklage nicht zerstört wird und keine Blasenbildung zwischen Decklage und PU-Hartschaum auftritt. Außerdem ist durch den hohen Anteil an anorganischem Material die Entflammbarkeit gegenüber vorbekannten Materialien weiter herabgesetzt.The high proportion of inorganic material also means that a PU rigid foam sheet provided with this top layer material is resistant to hot bitumen, for example of 180 degrees, the top layer is not destroyed and no blistering occurs between the top layer and PU rigid foam. In addition, the high proportion of inorganic material further reduces the flammability compared to previously known materials.

Als Bindemittel kommen sowohl solche auf anorganischer Grundlage, wie Wasserglas, als auch solche auf organischer Grundlage, insbesondere Kunststoffbasis, in Betracht. Da Wasserglas als Bindemittel die Decklage ziemlich spröde macht, empfehlen sich dabei auch Abmischungen mit Bindemitteln auf Kunststoffbasis. Anorganische Bindemittel haben den Vorzug, daß sie die Entflammbarkeit weiter herabsetzen.Both inorganic-based binders, such as water glass, and organic-based binders, in particular plastic-based, are suitable as binders. Since water glass as a binder makes the top layer quite brittle, blends with binders based on plastic are also recommended. Inorganic binders have the advantage that they further reduce the flammability.

Die Bindemittel auf Kunststoffbasis werden vorzugsweise als Kunststoffdispersionen mit einem Feststoffgehalt von 35 bis 70 Gew.-% eingesetzt. In Betracht kommen insbesondere Polyvinylchlorid und Polyvinylidenchlorid, die den Vorteil haben, schwer entflammbar zu sein und Co- und Terpolymerisate des Vinylacetats mit Maleinsäure und Acrylsäure. Besonders bevorzugt sind wegen ihrer guten Bindemitteleigenschaften gegenüber den anorganischen Beschichtungsbestandteilen Styrol-Butadien-Mischpolymerisate und Polymerisate bzw. Mischpolymerisate der Acrylsäure bzw. Methacrylsäure. Die Menge an eingesetzter Kunststoffdispersion hängt etwas vom Feststoffgehalt ab, wobei man, um die für die Trocknung der Beschichtung aufzuwendenden Energie gering zu halten, mit Dispersionen möglichst hohen Feststoffanteils arbeitet.The plastic-based binders are preferably used as plastic dispersions with a solids content of 35 to 70% by weight. Particularly suitable are polyvinyl chloride and polyvinylidene chloride, which have the advantage of being flame-retardant and copolymers and terpolymers of vinyl acetate with maleic acid and acrylic acid. Because of their good binder properties, styrene-butadiene copolymers and polymers or copolymers of acrylic acid or methacrylic acid are particularly preferred over the inorganic coating constituents. The amount of plastic dispersion used depends somewhat on the solids content, and in order to keep the energy required for drying the coating low, the solids content is as high as possible.

Als anorganisches Material sind die verchiedendsten pulverförmigen Stoffe geeignet, insbesondere solche auf mineralischer Basis, wie Silikate, Clays u.a.. Wegen seiner leichten Zugänglichkeit und damit vertretbaren Preisgestaltung hat sich Calciumcarbonat als besonders bevorzugt erwiesen.The most diverse powdery substances are suitable as inorganic material, in particular those based on minerals, such as silicates, clays, etc. Because of its easy accessibility and therefore reasonable pricing, calcium carbonate has proven to be particularly preferred.

Zur Erzielung besserer Werte im Bandverhalten empfiehlt sich als anorganisches Material besonders Aluminiumhydroxid oder Aluminiumoxidhydrat, mit dem sich die Entflammbarkeitsstufe A2 erzielen läßt.In order to achieve better values in strip behavior, aluminum hydroxide or aluminum oxide hydrate is particularly recommended as the inorganic material, with which the flammability level A2 can be achieved.

Um wirtschaftlich zu bleiben, besteht in einer bevorzugten Ausgestaltung der Erfindung das anorganische Material aus einer Mischung aus 10 bis 50 Gew.-% Calciumcarbonat und 90 bis 50 Gew.-% Aluminiumhydroxid oder Aiuminiumoxidhydrat fürdie Beschichtung. Dabei wird das Decklagenmaterial und die damit abgedeckte PU-Hartschaumplatte um so flammfester, je höher der Anteil an Aluminiumhydroxid oder Aluminiumoxidhydrat ist. Zweckmäßig enthält die Beschichtung noch gewisse Anteile an organischen oder mineralischen Farbstoffen, um dadurch verschiedene Güteklassen der Platte, beispielsweise hinsichtlich des Brandverhaltens zu kennzeichnen. Um dem Deckmaterial seine Transparenz zu nehmen und ein Hindurchschimmern des oft gelblichen PU-Hartschaumes zu verhindern, hat sich eine Einfärbung des Deckmaterials mit Ruß als bevorzugt erwiesen, weil dabei schon geringe Menge flächendeckend sind.In order to remain economical, in a preferred embodiment of the invention the inorganic material consists of a mixture of 10 to 50% by weight calcium carbonate and 90 to 50% by weight aluminum hydroxide or aluminum oxide hydrate for the coating. The cover layer material and the PU rigid foam sheet covered with it become all the more so more flame-resistant, the higher the proportion of aluminum hydroxide or aluminum oxide hydrate. The coating expediently also contains certain proportions of organic or mineral dyes, in order to thereby identify different grades of the plate, for example with regard to the fire behavior. In order to take away the transparency of the cover material and to prevent the often yellowish rigid PU foam from shimmering through, coloring the cover material with carbon black has proven to be preferred, because even a small amount covers the entire surface.

Für besondere Anwendungszwecke, insbesondere dann, wenn man an einem weißen Decklagenmaterial und damit einer weißen PU-Hartschaumplatte bzw. einer weißen Gipsplatte interessiert ist, hat sich die Zumischung von bis zu 5 Gew.- % Titanoxid-Pulver, bezogen auf die Gesamtmenge aus anorganischem Material als bevorzugt erwiesen.For special applications, especially if you are interested in a white top layer material and thus a white PU rigid foam board or a white gypsum board, the admixture of up to 5% by weight of titanium oxide powder, based on the total amount of inorganic Material proven to be preferred.

Das für das Decklagenmaterial verwendete Vlies oder Gewebe hat ein Flächengewicht zwischen 35 und 350 g/m2, bevorzugt von 40 g/m2 bis 150 g/m2 und die Auftragsgewichte der Beschichtung liegen zweckmäßig zwischen 150 und 450 g/m2, wobei diese Gewichte in starkem Ausmaße vom Einsatzzweck, der Dicke des Kernmaterials u.ä. Faktoren abhängig sind. Als Vlies- und Gewebematerial hat sich besonders Glasfaservlies bzw. -gewebe bewährt, da es nicht brennbar ist. Als Vlies- und Gewebematerial auf organischer Basis wird zweckmäßig ein solches auf Cellulosebasis eingesetzt. Seines guten Festigkeitswertes wegen ist ein Polyesterfaservlies bevorzugt geeignet. Bei Decklagenmaterial für Gipsplatten wird zweckmäßig sowohl Vlies- als auch ein Gittergewebe gemeinsam verwendet, weil dadurch die Bruchanfälligkeit der Gipsplatten ganz wesentlich verringert werden kann. Durch die gemeinsame Verwendung von Vlies und Gittergewebe läßt sich ganz generell die Längs- und Querfestigkeit beträchtlich erhöhen.The fleece or fabric used for the cover layer material has a basis weight between 35 and 350 g / m 2 , preferably from 40 g / m 2 to 150 g / m 2 and the application weights of the coating are expediently between 150 and 450 g / m 2 , whereby these weights to a large extent on the intended use, the thickness of the core material and the like. Factors are dependent. Glass fiber fleece or woven fabric has proven particularly useful as a nonwoven and woven material, since it is not flammable. An organic-based nonwoven and woven material is expediently used. Because of its good strength, a polyester fiber fleece is preferred. In the case of cover layer material for gypsum boards, both fleece and a mesh fabric are expediently used together, because this can significantly reduce the susceptibility of the gypsum boards to breakage. By using fleece and mesh together, the longitudinal and transverse strength can generally be increased considerably.

Besonders bevorzugt ist die Verwendung des erfindungsgemäßen Decklagenmaterials für die Herstellung beidseitig mit Decklagen versehener Platten aus flüssigen bzw. Flüssigkeit enthaltenden Ausgangskomponenten, insbesondere zur Herstellung von Gipsplatten und Polyurethan (PU)-Hartschaum- platten. Ganz bevorzugt ist die Verwendung des Decklagenmaterials zur Herstellung von beidseitig mit Decklagen versehenen Platten in einer kontinuierlichen Plattenerzeugungsanlage mit Ober-und Unterband. Es eignet sich natürlich auch als Kaschiermaterial zum nachträglichen Aufkaschieren beispielsweise auf aus einem Block aus aufgeschäumten Polystyrol herausgeschnittene Polystyrolschaumplatten, wobei auch hier die nicht beschichtete Vlies-oder Gewebeseite für den guten Verbund des Decklagenmaterials mit dem Kernmaterial über das Kaschiermaterial zur Verfügung steht.The use of the cover layer material according to the invention is particularly preferred for the production of sheets of liquid or liquid-containing starting components provided with cover layers on both sides, in particular for the production of gypsum boards and polyurethane (PU) rigid foam boards. The use of the cover layer material is very preferred for the production of plates provided with cover layers on both sides in a continuous plate production system with upper and lower belt. It is of course also suitable as a lamination material for subsequent lamination, for example on polystyrene foam sheets cut from a block of foamed polystyrene, the uncoated nonwoven or fabric side also being available here for the good bond between the cover layer material and the core material via the lamination material.

Nachfolgend wird die Erfindung an bevorzugten Beispielen anhand des Herstellungsverfahrens für die Decklagen näher erläutert:The invention is explained in more detail below using preferred examples with reference to the production process for the cover layers:

Beispiel 1:Example 1:

Auf ein Glasfaservlies mit einem Flächengewicht von ca.60 g/m2 wird in einer Rakelstreichanlage eine Beschichtungsmasse aus CaC03. Pulver einer statistischen mittleren Korngröße von ca. 10 f..lm und einer Polystyrol-Butadien-Dispersion mit einem Feststoffgehalt von 57 Gew.-% unter Zusatz von 1,5 g üblicher Hilfsmittel, wie Entschäumer, Netzmittel und Konservierungsmittel aufgetragen, wobei der Feststoffgehalt der Beschichtungsmasse insgesamt ca. 75 Gew.- % beträgt. Dabei sind die Mengenanteile an CaC03 -Pulver und Kunststoffdispersion in der Beschichtungsmasse so gewählt, daß nach der Trocknung mit heißer umluft in einem Trockenkanal die Beschichtung zu 92 Gew.-% aus anorganischem Material und zu 6,5 Gew.-% aus Bindemittel und der Rest aus Hilfsstoffen besteht. Die Beschichtungsmenge beträgt 250 g/m2atro.A coating composition of CaC0 3 is applied to a glass fiber fleece with a weight per unit area of approx. 60 g / m 2 in a knife coater. Powder with a statistical mean grain size of approx. 10 f..lm and a polystyrene-butadiene dispersion with a solids content of 57% by weight with the addition of 1.5 g of conventional auxiliaries, such as defoamers, wetting agents and preservatives, the solids content being applied the total coating mass is approximately 75% by weight. The proportions of CaC0 3 powder and plastic dispersion in the coating composition are chosen so that after drying with hot circulating air in a drying tunnel, the coating is 92% by weight of inorganic material and 6.5% by weight of binder and the rest consists of auxiliary materials. The coating amount is 250 g / m 2 atro.

Beispiel 2:Example 2:

Ein Vlies auf Cellulosebasis, das flammfest ausgerüstet ist und ein Gewicht von 50 g/m2 hat, wird in einer Rakelstreichanlage mit einer Beschichtungsmasse aus Aluminiumhydroxid, Calciumcarbonat und einer Kunststoffdispersion aus einem Terpolymerisat des Vinylacetats, der Maleinsäure und des Methacrylsäureesters mit einem Feststoffgehalt von 50 Gew.-% und 3 g der üblichen Hilfsmittel beschichtet, wobei der Feststoffgehalt der Beschichtungsmasse insgesamt ca. 73 Gew.-% beträgt. Dabei sind die Mengenanteile an Aluminiumhydroxid, Calciumcarbonat und Kunststoffdispersion in der Beschichtungsmasse so gewählt, daß nach der Trocknung mit heißer Umluft in einem Trockenkanal die Beschichtung zu 60 Gew.-% aus Aluminiumhydroxid, zu 22 Gew.-% aus Calciumcarbonat und zu 15 Gew.% aus Bindemittel, der Rest Hilfsstoffe besteht. Die Beschichtungsmenge beträgt ca. 250 g/m2 atro.A cellulose-based fleece, which is flame-retardant and has a weight of 50 g / m 2 , is applied in a knife coater with a coating composition of aluminum hydroxide, calcium carbonate and a plastic dispersion of a terpolymer of vinyl acetate, maleic acid and methacrylic acid ester with a solids content of 50 % By weight and 3 g of the customary auxiliaries, the total solids content of the coating composition being approximately 73% by weight. The proportions of aluminum hydroxide, calcium carbonate and plastic dispersion in the coating composition are selected so that after drying with hot circulating air in a drying tunnel, the coating is 60% by weight aluminum hydroxide, 22% by weight calcium carbonate and 15% by weight. % of binder, the rest of auxiliary materials. The coating amount is approx. 250 g / m 2 atro.

Beispiel 3:Example 3:

Auf ein Vlies aus Polyesterfasern mit einem Flächengewicht von 40 g/m2 wird eine Beschictungsmasse aus 25 g Aluminiumhydroxid, 43 g Calciumcarbonat, 4 g Titandioxid, 8 g einer Kunststoffdispersion aus einem Terpolymerisat des Vinylacetats, der Maleinsäure und eines Methacrylsäuresters mit einem Festsoffgehalt von 57 Gew.-% und ca. 1 g üblicher Verdickungs-, Netz- und Konservierungsmittel und 23 g Wasser in einer Rakelstreichanlage aufgetragen und mit heißer Umlauft in einem Trockenkanal getrocknet. Dies Decklagenmaterial zeichnet sich durch die Mitverwendung von Titandioxid durch seine weiße Farbe aus und findet bei der Herstellung von weißen Platten Verwendung, die als Wandverkleidungen eingesetzt werden. Die Beschichtungsmenge auf der getrockneten Decklage beträgt ca. 270 g/m2 atro.On a fleece made of polyester fibers with a weight per unit area of 40 g / m 2 , a coating of 25 g aluminum hydroxide, 43 g calcium carbonate, 4 g titanium dioxide, 8 g of a plastic dispersion made of a terpolymer of vinyl acetate, maleic acid and a methacrylic acid ester with a solids content of 57 % By weight and approx. 1 g of conventional thickening, wetting and preserving agents and 23 g of water were applied in a knife coater and dried with hot circulation in a drying tunnel. This top layer material is characterized by the use of titanium dioxide due to its white Color and is used in the production of white panels that are used as wall cladding. The amount of coating on the dried top layer is approx. 270 g / m 2 atro.

Claims (16)

1. Cover-layer material based on matting or fabric for the production of boards provided on both sides with cover layers made of liquid or liquid containing starting components having a coating, applied to one side, of puverulent inorganic material and binders,
characterised in that
on a matting or fabric of an area weight from 35 to 350 g/m2 is a coating, in which the pulverulent inorganic material makes up from 80 to 94 % of the absolutely dry weight and the binder at least 6 % of the absolutely dry weight of the total coating.
2. Cover material according to claim 1, characterised in that the binder is formed from a plastics dispersion having a solids contentoffrom 35 to 70 % by weight.
3. Cover material according to claim 1 or claim 2, characterised in that the binder is formed from a latex based on styrene/butadiene copolymers.
4. Cover material according to claim 1 or claim 2, characterised in that the binder is formed from a latex based on polymers or copolymers of acrylic acid or methacrylic acid.
5. Cover material according to claim 1, characterised in that the binder has an inorganic basis.
6. Cover material according to claim 1 or claim 5, characterised in that the binder is water glass.
7. Cover material according to any one of claims 1 to 6, characterised in that the binder is formed from a mixture of water glass and a plastics dispersion.
8. Cover material according to any one of claims 1 to 7, characterised in that the inorganic material is calcium carbonate.
9. Cover material according to any one of claims 1 to 8, characterised in that the inorganic material is aluminium hydroxide or aluminium oxide hydrate.
10. Cover material according to any one of claims 1 to 9, characterised in that the inorganic material is a mixture of from 10 to 50 % calcium carbonate and from 90 to 50 % aluminium hydroxide or aluminium oxide hydrate.
11. Cover material according to any one of claims 1 to 8, characterised in that the coating contains organic or mineral dyestuffs.
12. Cover material according to any one of claims 1 to 9, characterised in that the inorganic material additionally contains, as mineral dyestuff, up to 5 % by weight of titanium dioxide powder, based on the total amount of inorganic material.
13. Cover material according to any one of claims 1 to 12, characterised in that the matting or fabric has a weight per unit area of from 35 to 350 g/m2 and the application weight of the coating is from 150 to 450 g/m2.
14. Process for t he manufacture of the cover material according to any one of claims 1 to 13, characterised in that a coating composition having a solids content of from 70 to 80 % by weight is applied to the matting orfabric using a doctor apparatus and is dried by means of circulating air drying.
15. Use of the cover material according to anyone of claims 1 to 13 for the manufacture of boards made of liquid or liquid-containing starting components and provided on both sides with cover layers, especially for the manufacture of plaster- boards and polyurethane (PU) hard foam boards.
16. Use of the cover-layer material according to any one of claims 1 to 13 for the manufacture of boards provided on both sides with cover layers in a continuous board-producing installation having an upper and a lower belt.
EP19850102823 1984-03-12 1985-03-12 Coating layer based on a fleece or a fabric Expired - Lifetime EP0159514B2 (en)

Priority Applications (1)

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AT85102823T ATE32612T1 (en) 1984-03-12 1985-03-12 FLEECE OR FABRIC BASED LINER MATERIAL.

Applications Claiming Priority (2)

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DE19843408932 DE3408932A1 (en) 1984-03-12 1984-03-12 LAYERING MATERIAL ON FLEECE OR FABRIC BASE
DE3408932 1984-03-12

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EP0159514A1 EP0159514A1 (en) 1985-10-30
EP0159514B1 EP0159514B1 (en) 1988-02-24
EP0159514B2 true EP0159514B2 (en) 1993-05-12

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EP (1) EP0159514B2 (en)
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Families Citing this family (66)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3508933A1 (en) * 1985-03-13 1986-10-09 Gebr. Knauf Westdeutsche Gipswerke, 8715 Iphofen Non-combustible gypsum construction board with glass fibre layer
DE3936561A1 (en) * 1989-11-03 1991-05-08 Degussa METHOD FOR PRODUCING A CERAMIC VENEER WHICH CAN BE WINDED IN UNBURNED STATE
DE3937433A1 (en) * 1989-11-10 1991-05-16 Knauf Westdeutsche Gips PLASTERBOARD PANEL WITH COATING FROM COATED FIBERGLASS Mats and METHOD FOR THE PRODUCTION THEREOF
US5358750A (en) * 1990-12-14 1994-10-25 Scapa Group Plc Industrial fabrics
GB9027143D0 (en) * 1990-12-14 1991-02-06 Scapa Group Plc Industrial fabrics
US5232745A (en) * 1991-03-01 1993-08-03 Manville Corporation Method of neutralizing acid containing compositions present in an insulation board
DE4303289C2 (en) * 1993-02-05 1996-09-19 Schuller Gmbh Glaswerk Top layer material
WO1997024485A1 (en) * 1995-12-27 1997-07-10 Performance Roof Systems S.A. Method for manufacture of an impermeable membrane and a roof covering
WO1999000338A1 (en) * 1997-06-27 1999-01-07 Elk Corporation Coated structural articles
US6341462B2 (en) 1999-01-08 2002-01-29 Elk Corporation Of Dallas Roofing material
US6500560B1 (en) 1999-11-30 2002-12-31 Elk Corporation Of Dallas Asphalt coated structural article
US6858550B2 (en) 2001-09-18 2005-02-22 Elk Premium Building Products, Inc. Fire resistant fabric material
US20030228460A1 (en) * 1999-11-30 2003-12-11 Younger Ahluwalia Fire resistant structural material and fabrics made therefrom
US6708456B2 (en) 1999-11-30 2004-03-23 Elk Premium Building Products, Inc. Roofing composite
US6586353B1 (en) 1999-11-30 2003-07-01 Elk Corp. Of Dallas Roofing underlayment
US6872440B1 (en) 1999-11-30 2005-03-29 Elk Premium Building Products, Inc. Heat reflective coated structural article
US20030224679A1 (en) * 1999-11-30 2003-12-04 Younger Ahluwalia Fire resistant structural material and fabrics made therefrom
US7521385B2 (en) * 1999-11-30 2009-04-21 Building Materials Invest Corp Fire resistant structural material, fabrics made therefrom
US6673432B2 (en) 1999-11-30 2004-01-06 Elk Premium Building Products, Inc. Water vapor barrier structural article
WO2001094718A1 (en) 2000-06-08 2001-12-13 Elk Corporation Of Dallas Surface covering building materials resistant to microbial growth staining
US20030091795A1 (en) * 2000-06-08 2003-05-15 Matti Kiik Metal flake-surfaced roofing materials
US8197893B2 (en) * 2000-06-08 2012-06-12 Building Materials Investment Corporation Colored metal flake surfaced roofing materials
FR2812012B1 (en) 2000-07-18 2003-06-13 Lafarge Platres PLASTERBOARD WITH IMPROVED FIRE RESISTANCE AND ITS REPAIR
US7399718B2 (en) 2001-02-26 2008-07-15 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Water-repellent and vapor-permeable multilayer material for outdoor applications
DE10109264B4 (en) * 2001-02-26 2005-06-23 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Water-repellent and vapor-permeable multi-layer material for outdoor applications
US6770354B2 (en) 2001-04-19 2004-08-03 G-P Gypsum Corporation Mat-faced gypsum board
US8017531B2 (en) * 2001-09-18 2011-09-13 Elkcorp Composite material
GB2399778A (en) * 2001-12-20 2004-09-29 Atlas Roofing Corp Method and composition for coating mat and articles produced therewith
US7645490B2 (en) * 2001-12-20 2010-01-12 Atlas Roofing Corporation Method and composition for coating mat and articles produced therewith
US7563733B2 (en) * 2002-01-29 2009-07-21 Elkcorp Composite material
US8030229B2 (en) * 2002-01-29 2011-10-04 Elkcorp. Composite material
US20040229052A1 (en) * 2003-01-29 2004-11-18 Elkcorp Composite material
US20040209074A1 (en) * 2003-04-17 2004-10-21 Georgia-Pacific Gypsum Corporation Mat faced gypsum board
US7842629B2 (en) * 2003-06-27 2010-11-30 Johns Manville Non-woven glass fiber mat faced gypsum board and process of manufacture
US20040266303A1 (en) * 2003-06-27 2004-12-30 Jaffee Alan Michael Gypsum board faced with non-woven glass fiber mat
US7989370B2 (en) * 2003-10-17 2011-08-02 Georgia-Pacific Gypsum Llc Interior wallboard and method of making same
US7745357B2 (en) 2004-03-12 2010-06-29 Georgia-Pacific Gypsum Llc Use of pre-coated mat for preparing gypsum board
US8822355B2 (en) * 2004-03-23 2014-09-02 Elkcorp Fire resistant composite material and fabrics made therefrom
US20050215150A1 (en) * 2004-03-23 2005-09-29 Elkcorp Fire resistant composite material and fabrics therefrom
US20050215149A1 (en) * 2004-03-23 2005-09-29 Elkcorp Fire resistant composite material and fabrics therefrom
US7361617B2 (en) * 2004-03-23 2008-04-22 Elkcorp Fire resistant composite material and fabrics therefrom
US20050215152A1 (en) * 2004-03-23 2005-09-29 Elkcorp Fire resistant composite material and fabrics therefrom
BRPI0509371A (en) * 2004-03-30 2007-09-11 Coveright Surfaces Holding Gmb coating composition, coated article and a method for making the same
DE202004005399U1 (en) 2004-04-04 2004-07-29 Schillings, Hans Non-woven or fabric-based cover sheet material
US7429544B2 (en) * 2004-04-16 2008-09-30 Owens Corning Intellectual Capital, Llc Coated facer
US20080014814A1 (en) * 2006-07-13 2008-01-17 Geel Paul A Highly filled fibrous veil
US20100143684A1 (en) * 2004-06-18 2010-06-10 Owens Corning Fibrous veil impregnated with surface finish formulation
US7635657B2 (en) * 2005-04-25 2009-12-22 Georgia-Pacific Gypsum Llc Interior wallboard and method of making same
US20060292948A1 (en) * 2005-06-27 2006-12-28 Geel Paul A Fibrous veil impregnated with surface finish formulation
US20070141931A1 (en) * 2005-12-21 2007-06-21 Malay Nandi Faced board material having a smooth aesthetically pleasing outer surface and good adhesion of facer to core
US20080160301A1 (en) * 2006-12-28 2008-07-03 Malay Nandi Mica containing coating compositions, coated nonwoven fibrous mats, laminates and method
US8070895B2 (en) 2007-02-12 2011-12-06 United States Gypsum Company Water resistant cementitious article and method for preparing same
US20090104425A1 (en) 2007-10-22 2009-04-23 Malay Nandi Fire retardant coating composition for fibrous mat
DE102008005423A1 (en) 2008-01-21 2009-07-23 Hans Schillings Cover layer for plate-shaped body
US8329308B2 (en) 2009-03-31 2012-12-11 United States Gypsum Company Cementitious article and method for preparing the same
US20100273382A1 (en) 2009-04-28 2010-10-28 Malay Nandi Acoustic and fire retardant foam coating composition for fibrous mat
UA115550C2 (en) 2012-02-17 2017-11-27 Юнайтед Стейтс Джипсум Компані Gypsum products with high efficiency heat sink additives
US10336036B2 (en) * 2013-03-15 2019-07-02 United States Gypsum Company Cementitious article comprising hydrophobic finish
US8974925B1 (en) 2013-10-15 2015-03-10 United States Gypsum Company Gypsum board
CN104179034B (en) * 2014-06-25 2016-03-30 惠州市欧野科技有限公司 A kind of fruit of negundo functional fabric for Pillow for infant
US9840843B2 (en) 2014-08-05 2017-12-12 United States Gypsum Company Gypsum products with improved glass fiber mat
US10500761B2 (en) 2014-08-25 2019-12-10 United States Gypsum Company Method to improve surface finish of glass fiber mat
SG11202103971TA (en) 2018-10-23 2021-05-28 Carlisle Construction Materials Llc Insulation board with improved performance
CN114096498A (en) * 2019-06-13 2022-02-25 欧文斯科宁知识产权资产有限公司 Walkable face stock felt for roof insulation
US11685140B2 (en) * 2020-06-05 2023-06-27 Johns Manville Non-wicking underlayment board
US11773586B2 (en) * 2020-06-05 2023-10-03 Johns Manville Non-wicking underlayment board

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1247612B (en) * 1965-07-22 1967-08-17 Heinz Suellhoefer Method and device for the continuous production of laminated panels made of rigid polyurethane foam
DE2700608A1 (en) * 1977-01-08 1978-07-20 Basf Ag NON-FLAMMABLE COMPOSITE INSULATION
DE2856081A1 (en) * 1978-12-23 1980-07-10 Bayer Ag FLAME-RETARDANT LAMINATES
EP0044162A3 (en) * 1980-07-11 1982-05-12 Imperial Chemical Industries Plc Inorganic coatings comprising layer minerals
US4371579A (en) * 1980-10-09 1983-02-01 Westinghouse Electric Corp. Fire-resistant filler sheet laminates
DE3113682A1 (en) * 1981-04-04 1982-10-28 Fa. Carl Freudenberg, 6940 Weinheim PLASTER PLATE AND METHOD FOR THE PRODUCTION THEREOF
DE3120342A1 (en) * 1981-05-22 1982-12-09 Dieter 7457 Bisingen Siebert Insulating element, in particular thermal insulation sheet or board
US4567093A (en) * 1983-04-25 1986-01-28 Achilles Corporation Rubber coated fabric
GB8317428D0 (en) * 1983-06-27 1983-07-27 Unilever Plc Highly absorbent substrate articles
JPS61641A (en) * 1984-06-07 1986-01-06 東洋紡績株式会社 Different shrinkage blended fiber yarn fabric

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DE3561666D1 (en) 1988-03-31
FI81391B (en) 1990-06-29
WO1985004199A1 (en) 1985-09-26
EP0159514B1 (en) 1988-02-24
FI81391C (en) 1990-10-10
FI854437A (en) 1985-11-12
EP0159514A1 (en) 1985-10-30
ATE32612T1 (en) 1988-03-15
US4784897A (en) 1988-11-15
FI854437A0 (en) 1985-11-12
DE3408932A1 (en) 1985-09-19

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